Mindray TE7 - Page 263

Guidance and Manufacturer's Declaration 16-5
TABLE 4
RECOMMENDED SEPARATION DISTANCES BETWEEN PORTABLE AND MOBILE RF
COMMUNICATION DEVICE AND THE SYSTEM
The system is intended for use in an electromagnetic environment in which radiated RF
disturbance are controlled. The customer or the user of system can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communication equipment (transmitters) and system as recommended below, according to
the maximum output power of the communication equipment.
Rated Maximum
Output power of
Transmitter
(W)
Separation Distance According to Frequency of Transmitter
(m)
150kHz -80MHz
d＝1.2√P
80MHz-800MHz
d＝1.2√P
800MHz-2.5GHz
d＝2.3√P
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
For transmitters at a maximum output power not listed above, the recommended separation
distanced in meters (m) can be determined using the equation applicable to the frequency of the
transmitter, where P is the maximum output power rating of the transmitter in watts (W)
according to the transmitter manufacturer.
If system image distortion occurs, it may be necessary to position system further from sources of
conducted RF noise or to install external power source filter to minimize RF noise to an
acceptable level.
Note 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range
applies.
Note 2 These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
Cable sample
No.
Name
Cable length (m)
Shield or not
Remarks
1
AC inlet cable for the main unit
2.5
Not shielded
/
2
AC inlet cable for the trolley
2.5
Not shielded
/
3
Foot-switch control cable
2.8
Not shielded
/
4
Probe cable
2.2
Shielding
/
5
ECG Lead
1.4
Not shielded
/
 Federal Communications Commission (FCC) Statement
The wireless module has been tested and found to comply with the limits for a class B digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures: